Most of the research incorporated in this monograph was initially undertaken as part of the author's Ph.D. dissertation submitted to the School of Urban and Public Affairs, Carnegie-Mellon University. The research was funded through a Doctoral Dissertation Grant from the U.S. Department of Housing and Urban Development. The dissertation was a winning entry in the 1979-80 Ph.D. Disser tation Competition of the North American Regional Science Association, funded through a grant from the Economic Development Agency of the U.S. Depart ment of Commerce. Revisions and extensions of the initial...